18070425

素因数分解:

$3^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1409}}^1$

素因数の和:1447

約数の個数: 48

約数和(自身を含む): 34968000

約数和(自身を除く): 16897575

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 135, 171, 225, 285, 475, 513, 675, 855, 1409, 1425, 2565, 4227, 4275, 7045, 12681, 12825, 21135, 26771, 35225, 38043, 63405, 80313, 105675, 133855, 190215, 240939, 317025, 401565, 669275, 722817, 951075, 1204695, 2007825, 3614085, 6023475, 18070425]

約数ペア:

[(1, 18070425), (3, 6023475), (5, 3614085), (9, 2007825), (15, 1204695), (19, 951075), (25, 722817), (27, 669275), (45, 401565), (57, 317025), (75, 240939), (95, 190215), (135, 133855), (171, 105675), (225, 80313), (285, 63405), (475, 38043), (513, 35225), (675, 26771), (855, 21135), (1409, 12825), (1425, 12681), (2565, 7045), (4227, 4275)]